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EN ISO 4629-2:2016

Current

Current

The latest, up-to-date edition.

Binders for paints and varnishes - Determination of hydroxyl value - Part 2: Titrimetric method using a catalyst (ISO 4629-2:2016)

Published date

29-06-2016

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European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Procedure
9 Expression of results
10 Precision
11 Test report
Bibliography

ISO 4629-2:2016 specifies a titrimetric method for determining the hydroxyl value of resins, binders for paints and varnishes, primary alcohols, glycols and fats. Whether it can be applied for hydro carboxylic acids, phenolic hydroxyl groups, polyols such as trimethyl propane and substances containing aromatic groups have been activated for Friedel-Crafts acylation shall be decided on case-to-case basis.Under the right conditions, the method is also applicable for determining the hydroxyl value of castor oil and its derivatives.

Committee
CEN/TC 139
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

ISO 2114:2000 Plastics (polyester resins) and paints and varnishes (binders) Determination of partial acid value and total acid value
ISO 660:2009 Animal and vegetable fats and oils Determination of acid value and acidity
ISO 15528:2013 Paints, varnishes and raw materials for paints and varnishes Sampling
ISO 4629-1:2016 Binders for paints and varnishes — Determination of hydroxyl value — Part 1: Titrimetric method without using a catalyst
ISO 4618:2014 Paints and varnishes — Terms and definitions
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods

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